{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-87112", "assignerOrgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "state": "PUBLISHED", "assignerShortName": "Wordfence", "dateReserved": "2026-09-08T20:36:46.771Z", "datePublished": "2026-11-07T06:39:37.565Z", "dateUpdated": "2026-11-07T06:39:37.565Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "b15e7b5b-3da4-40ae-a43c-f7aa60e62599", "shortName": "Wordfence", "dateUpdated": "2026-11-07T06:39:37.565Z"}, "affected": [{"vendor": "quarka", "product": "QA Assistants \u2013 Driven by data", "versions": [{"version": "0", "status": "affected", "lessThanOrEqual": "5.3.0", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "The QA Assistants \u2013 Driven by data plugin for WordPress is vulnerable to PHP Object Injection in all versions up to, and including, 5.3.0 via the 'dlevent_ver' parameter. This is due to unrestricted PHP deserialization via wrap_unserialize_static() calling unserialize() without an allowed_classes restriction, combined with serialize_escape() failing to sanitize path traversal sequences in the raw_name parameter. This makes it possible for unauthenticated attackers to inject a PHP Object. The Guzzle FileCookieJar gadget present in the plugin's bundled Composer dependencies can be leveraged to perform an Arbitrary File Write, writing attacker-controlled content to an attacker-chosen filename, which can result in Remote Code Execution. Exploitation requires triggering the qahm_cron_data_manage scheduled event via wp-cron.php to invoke the deserialization sink against a planted queue file, but this endpoint requires no authentication and fires automatically on a two-minute schedule."}], "title": "QA Assistants <= 5.3.0 - Unauthenticated PHP Object Injection to Remote Code Execution via 'raw_name' and 'dlevent_ver' Parameters", "references": [{"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/76c5b5f1-a04b-4219-b8c0-ee53139fa787?source=cve"}, {"url": "https://plugins.trac.wordpress.org/browser/qa-heatmap-analytics/tags/5.2.0.1/class-qahm-base.php#L701"}, {"url": "https://plugins.trac.wordpress.org/browser/qa-heatmap-analytics/tags/5.2.0.1/class-qahm-admin-page-realtime.php#L183"}, {"url": "https://plugins.trac.wordpress.org/browser/qa-heatmap-analytics/tags/5.2.0.1/vendor/guzzlehttp/guzzle/src/Cookie/FileCookieJar.php#L38"}, {"url": "https://plugins.trac.wordpress.org/browser/qa-heatmap-analytics/tags/5.2.0.1/class-qahm-cron-proc.php#L698"}, {"url": "https://plugins.trac.wordpress.org/browser/qa-heatmap-analytics/tags/5.2.0.1/class-qahm-core-base.php#L780"}, {"url": "https://plugins.trac.wordpress.org/browser/qa-heatmap-analytics/tags/5.2.0.1/qahm-ajax.php#L319"}, {"url": "https://plugins.trac.wordpress.org/browser/qa-heatmap-analytics/tags/5.2.0.1/class-qahm-behavioral-data.php#L770"}, {"url": "https://plugins.trac.wordpress.org/changeset?reponame=&old=3728466%40qa-heatmap-analytics&new=3728466%40qa-heatmap-analytics"}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-502 Deserialization of Untrusted Data", "cweId": "CWE-502", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 8.8, "baseSeverity": "HIGH"}}], "credits": [{"lang": "en", "type": "finder", "value": "Supakiad S. (m3ez)"}], "timeline": [{"time": "2026-11-06T18:15:14.000Z", "lang": "en", "value": "Disclosed"}]}}}